Results 61 to 70 of about 818 (219)

Research on Flexible Operation Control Strategy of Motor Operating Mechanism of High Voltage Vacuum Circuit Breaker

Energies
In order to solve the problem that it is difficult to take into account the performance constraints between the core functions of insulation, current flow and arc extinguishing of high-voltage vacuum circuit breakers at the same time, this paper proposes
Dongpeng Han, Weidong Chen, Zhaoxuan Cui
doaj   +1 more source

Hybrid phase-controlled circuit breaker with switch system used in the railway auto-passing neutral section with an electric load

CSEE Journal of Power and Energy Systems, 2019
Constrained by the characteristics of neutral sections (NS) and traditional vacuum circuit breakers, previous phase-controlled strategies have a long power supply dead time, it is difficult to realize a continuous power supply to the auxiliary power ...
Shuo Wang, Liyan Zhang, Guanghui Yu, Enyuan Dong, Jiyan Zou, Yu Cong, Yu Tian   +6 more
doaj   +1 more source

Switching transients caused by vacuum circuit breakers in collection grids of offshore wind farms

Wind Energy, 2021
In this study, transients that can occur in the collection grids of offshore wind farms were investigated. On the basis of the multiple prestrike and reignition model that can reflect the actual operation of a vacuum circuit breaker (VCB), a switching ...
Jiayuan Tao, Qing Yang, Xuena Zheng, Yanxiao He, Ruixue Wang, Hefei Lv, Jie Zhang   +6 more
doaj   +1 more source

Dynamics of arc phenomena at closure of electrical contacts in vacuum circuit breakers

, 2005
Dynamic phenomena accompanying electrical contact closure in vacuum circuit breakers are considered as consecutive stages, including breakdown, touch, compression, restitution, bridging, and arcing at bouncing. The hybrid mathematical model is elaborated
Amft, D., Kharin, Stanislav N., Nouri, Hassan   +2 more
core   +1 more source

Research on Vibration Measurement and Analysis Technology of Circuit Breaker Based on VMD and LSTM

Applied Sciences
In this paper, we propose a mechanical fault diagnosis technology for circuit breakers based on the NGO-VMD, aiming to improve the accuracy and efficiency of fault diagnosis.
Jia Hao, Qilong Yan, Guanru Wen, Jingyao Wang, Long Zhao   +4 more
doaj   +1 more source

Size Scaling of the Electrochemical Performance of Ti3C2Tx MXene Microelectrode Arrays for Electrophysiological Recording and Stimulation

Small, Volume 22, Issue 36, 26 June 2026.
This study evaluates Ti3C2Tx MXene‐based microelectrodes across a range of diameters (25–500 µm) and elucidates their recording and stimulation capabilities for bioelectronic applications. Several electrochemical measurements—supported further by equivalent‐circuit modeling—revealed enhanced recording and stimulation capabilities of the MXene ...
Spencer R. Averbeck, Raghav Garg, Royce Dong, Daryl Hurwitz, Nicholas V. Apollo, Michael S. Beauchamp, Flavia Vitale   +6 more
wiley   +1 more source

Online Monitoring Method for Opening and Closing Time of 10 kV Spring Energy Storage Circuit Breaker Based on Transient Electrical Signal Characteristic Point Marking and Self-Calibration

Energies
Among all circuit breaker faults, mechanical failures account for a considerable proportion, and online monitoring of their mechanical characteristics is of great practical significance.
Liting Weng, Jiangtao Xiao, Zhaochuang Zhang, Jingang Wang, Yuchuan Wen, Fan Zhang, Xingyu Zhang, Lingyi Ma, Pengcheng Zhao   +8 more
doaj   +1 more source

Analysis of the Vacuum Arc Interruption Process in Aviation Intermediate-Frequency Power Supply Systems

Energies, 2017
In this paper, we present our research into the interruption performance of vacuum circuit breakers in aviation intermediate-frequency (360 Hz to 800 Hz) power supply systems. Intermediate-frequency vacuum arc experiments were carried out in interrupters
Yuan Jiang, Jianwen Wu, Mingxuan Chen, Wenlei Huo   +3 more
doaj   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

High Voltage, Volume 11, Issue 3, Page 715-724, June 2026.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li   +6 more
wiley   +1 more source

Circuit breakers in power system

, 2021
Prekidači su elementi elektroenergetskog postrojenja koji služe za otvaranje i zatvaranje normalnih pogonskih struja, a mogu i služiti kao zaštita od struje kratkog spoja jer je njihova karakteristika kratkotrajno vođenje, uklapanje i isklapanje struje
Ostrihon, Filip
core